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xilinx_spips: Add support for RX discard and RX drain

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Add support for the RX discard and RX drain functionality. Also transmit
one byte per dummy cycle (to the flash memories) with commands that require
these.

Signed-off-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20171126231634.9531-8-frasse.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Francisco Iglesias 2017-12-13 17:59:21 +00:00 • committed by Peter Maydell
parent c3725b8549
commit ef06ca3946
2 changed files with 160 additions and 23 deletions
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6
include/hw/ssi/xilinx_spips.h
View file

@ -61,13 +61,19 @@ struct XilinxSPIPS {
uint8_t num_busses;
uint8_t snoop_state;
int cmd_dummies;
uint8_t link_state;
uint8_t link_state_next;
uint8_t link_state_next_when;
qemu_irq *cs_lines;
bool *cs_lines_state;
SSIBus **spi;
Fifo8 rx_fifo;
Fifo8 tx_fifo;
uint8_t num_txrx_bytes;
uint32_t rx_discard;
uint32_t regs[XLNX_SPIPS_R_MAX];
};